The Subaru key fob requires different battery types based on its design. Newer rectangular key fobs use a 2032 lithium battery. Older teardrop models use a 2025 lithium battery. The oldest exposed-metal-key fobs require a 1620 lithium battery. Always check the design before replacing the battery.
To replace the battery, first, locate the small notch on the side of the key fob. Gently insert a flathead screwdriver or a similar tool into the notch to pry it open. After removing the cover, you will find the old battery. Note the orientation, as the positive side must face the correct direction for proper installation.
Once you have the new CR2032 battery, position it in the same way as the old one. Close the key fob securely and test its functionality.
Understanding the battery size is just the beginning. Knowing how to replace the battery effectively can enhance your key fob’s performance. In the upcoming section, we will explore additional tips for maintaining your Subaru key fob.
What Size Battery Does My Subaru Key Fob Need?
The size of the battery that your Subaru key fob needs is typically a CR2032 battery.
- Common battery size:
– CR2032 - Alternative sizes for different models:
– CR2025
– CR2016 - Variability by model year:
– Differences between recent and older vehicles - User experiences:
– Some users report varying lifespans of batteries under different conditions - Importance of checking manual:
– Always refer to the vehicle’s owner’s manual for specific guidance
Transitioning into a more detailed explanation of each point will provide valuable insights for Subaru owners.
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Common battery size:
The common battery size for Subaru key fobs is the CR2032. This battery is a lithium coin cell known for its reliability and long shelf life. It can typically last between 3 to 5 years, depending on usage frequency. A study by Battery University (2020) indicates that the performance of lithium batteries can be influenced by temperature and usage patterns, impacting overall longevity. -
Alternative sizes for different models:
Certain Subaru models may use alternative battery sizes, such as CR2025 or CR2016. These batteries differ in thickness and capacity. While the CR2025 is slightly thinner than the CR2032, the CR2016 is even slimmer. Vehicle owners should check their key fob to ensure they choose the correct size, as using an incorrect battery may lead to functionality issues. -
Variability by model year:
The battery type can vary by Subaru model year. For example, some older models may require a different size compared to more recent versions. A detailed chart in the Subaru owner’s manual can clarify these distinctions. Knowledge of your specific vehicle’s year and model is essential for selecting the right battery. -
User experiences:
User experiences often reflect various factors affecting battery life. Some Subaru owners report that batteries last longer while others find theirs deplete quicker. Environmental factors, such as extreme temperatures or frequent key fob usage, can all influence battery lifespan. Personal accounts reveal that consistent use, like remote start functionality, might drain batteries faster. -
Importance of checking manual:
Checking the vehicle’s owner’s manual is crucial when replacing a key fob battery. The manual provides specifics for your vehicle’s key fob model, including the correct battery size and replacement procedures. Following the manufacturer’s guidelines ensures proper functionality of the remote features without any risk of damage.
By following these insights, Subaru owners can ensure they select the appropriate battery for their key fob, enhancing functionality and longevity.
How Can I Determine the Battery Type for My Subaru Key Fob?
To determine the battery type for your Subaru key fob, you can check the owner’s manual, inspect the current battery, or look for identification numbers on the fob.
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Owner’s Manual: The owner’s manual typically lists the specifications for the key fob battery. You can find the exact battery type and size in the section that discusses the key fob or remote control. This method provides reliable information specific to your model year.
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Inspect Current Battery: You can open the key fob to inspect the existing battery. Use a small screwdriver or a coin to gently pry apart the fob. The battery is usually labeled with its type and number, such as CR2032 or CR2025. Make sure to note this information for replacement.
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Identification Numbers: Many Subaru models have a small identification number or code printed on the inside of the key fob. If the battery is not directly labeled, this code can help you identify the correct battery type with a quick internet search or by consulting your dealership.
Using these methods, you can accurately determine the battery type needed for your Subaru key fob.
What Are the Different Battery Types Used in Subaru Key Fobs?
The different battery types used in Subaru key fobs primarily include coin cell batteries, specifically CR2032 and CR2016 models.
- CR2032 battery
- CR2016 battery
The most common battery type for Subaru key fobs is the CR2032. This battery offers a greater capacity and longer lifespan. It is used in various models, including the Subaru Outback and Subaru Forester. The CR2016 is another option but has a lower energy capacity. Some key fob designs may even require multiple batteries for operation.
- CR2032 Battery: The CR2032 battery is typically a 3V lithium coin cell battery measuring 20mm in diameter and 3.2mm in thickness. This battery is known for its long-lasting performance, typically providing around 240 mAh (milliamp hours) of energy. Subaru key fobs like those for the Outback and Forester frequently use this battery due to its advantages in longevity and reliability.
The CR2032 battery has become a standard in various devices beyond automotive applications, such as watches, medical devices, and computer motherboards. According to recent studies by battery manufacturers, it has one of the highest energy densities among consumer batteries, allowing devices to operate smoothly over an extended period before requiring replacement.
- CR2016 Battery: The CR2016 battery also operates at 3V, but it measures 20mm in diameter and is only 1.6mm thick. This battery has a lower capacity of around 90 mAh, making it suitable for devices that consume less power. Some Subaru key fobs may use this battery, albeit less commonly than the CR2032.
While the CR2016 battery is lighter and slimmer, this comes at the cost of shorter lifespan and lower energy capacity. Consumers may prefer the CR2032 for high-use applications. According to consumer feedback and reviews, Subaru owners often find the CR2032 to be a more reliable choice, particularly for frequent key fob users.
Subaru philosophy tends to lean towards incorporating the CR2032 battery in most of their key fobs to enhance user experience and reduce maintenance frequency. However, it is always advisable to consult the vehicle’s manual or a professional for key fob battery specifications to ensure compatibility.
How Frequently Should I Replace the Battery in My Subaru Key Fob?
You should replace the battery in your Subaru key fob every 3 to 4 years. Key fob batteries typically last this long based on average use. Signs of a weak battery include a decreased range or unresponsive buttons. When you notice these issues, you should replace the battery promptly to ensure proper function. The key fob uses a specific battery size, often CR2032, but you should confirm this with your owner’s manual. Following these steps will help you maintain key fob reliability and extend its lifespan.
What Signs Indicate a Low Battery in My Subaru Key Fob?
A low battery in your Subaru key fob can often be indicated by specific signs and symptoms.
The main signs that your Subaru key fob may have a low battery include:
1. Reduced range when unlocking or starting the vehicle.
2. Intermittent function, requiring multiple presses to work.
3. Warning light on the dashboard indicating a key fob issue.
4. Lack of response when pressing the buttons.
5. Inconsistent operation of the remote start feature.
Understanding these signs is important to ensure the proper functioning of your key fob, as neglecting battery replacement can lead to more significant issues.
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Reduced Range: A reduced range when unlocking or starting the vehicle is a clear sign of a low battery. This happens when the battery cannot generate sufficient power to send a strong signal to the vehicle. It is essential to replace the battery before this function ceases entirely.
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Intermittent Function: If the key fob requires multiple presses to respond, it suggests that the battery is fading. This symptom often leads to frustration and can be an early indicator to take action.
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Warning Light on the Dashboard: Some Subaru models may display a warning light on the dashboard for key fob issues. This alert serves as a clear reminder that the key fob battery may need replacement.
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Lack of Response: When your key fob fails to respond at all, it is often a sign of a completely drained or defective battery. The fob should operate reliably, and a total lack of response typically indicates it’s time for a battery change.
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Inconsistent Operation of Remote Start Feature: Inconsistent operation of features such as remote start can indicate that the key fob battery is low. If the remote start works occasionally but not reliably, this may signal that the battery is struggling to maintain sufficient power.
Addressing these signs promptly ensures your key fob functions correctly, maintaining access to your vehicle without inconvenience.
How Can I Replace the Battery in My Subaru Key Fob Myself?
You can replace the battery in your Subaru key fob yourself by following a few simple steps involving removal of the fob cover, replacing the old battery with a new one, and reassembling the fob.
- Gather necessary tools: You will need a small flat-head screwdriver or a similar tool to open the fob.
- Locate the seam: Identify the seam on your key fob where the two halves meet.
- Open the fob: Insert the flat-head screwdriver into the seam and gently pry apart the two halves. Be careful to apply even pressure to avoid damaging the plastic.
- Remove the old battery: Once the fob is open, locate the battery. Gently lift it out using your fingers or the screwdriver. Note the battery type, usually a CR2032 for Subaru key fobs.
- Insert the new battery: Take the new battery and ensure it is oriented correctly, matching the + and – symbols. Place it gently into the battery compartment.
- Close the fob: Align the two halves of the fob and press them together firmly until you hear a click, indicating that it is securely closed.
- Test the fob: Finally, test the key fob to ensure it functions correctly.
By following these steps, you can efficiently replace your Subaru key fob battery, saving time and money. This process usually takes only a few minutes.
Where Can I Find Replacement Batteries for My Subaru Key Fob?
To find replacement batteries for your Subaru key fob, start by determining the battery type. Most Subaru key fobs use a CR2032 battery. You can purchase this battery at several locations. First, visit an automotive parts store. These stores often stock key fob batteries. Next, check electronics retailers. They typically carry a wide range of batteries, including those for key fobs. Additionally, consider online retailers such as Amazon or eBay. These platforms usually have competitive prices and fast shipping options. Finally, you can also visit your local Subaru dealership. They can provide the exact replacement battery for your key fob. By following these steps, you can easily locate a replacement battery for your Subaru key fob.
What Tools Do I Need for Replacing My Subaru Key Fob Battery?
To replace your Subaru key fob battery, you need a few essential tools.
- A small flathead screwdriver or coin
- A new battery (commonly CR2032 or CR2025)
- A clean cloth (optional, for wiping contacts)
Now that we have identified the required tools, let’s delve deeper into each item’s function and specifications.
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A Small Flathead Screwdriver or Coin: The small flathead screwdriver or a coin helps to open the key fob casing without damaging it. Many Subaru key fobs include a seam where the two halves meet. A flathead screwdriver or a coin can be gently inserted into this seam to pop the casing open. Care should be taken to avoid scratching or cracking the fob.
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A New Battery: The new battery is crucial for the key fob to function correctly. Most Subaru key fobs use either a CR2032 or a CR2025 battery. The CR2032 battery measures 20mm in diameter and 3.2mm in thickness, while the CR2025 is slightly thinner at 2.5mm. Checking the existing battery’s specifications beforehand is advisable to ensure proper compatibility.
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A Clean Cloth: While optional, a clean cloth is useful for wiping any dust or debris from the battery contacts inside the key fob. This ensures a good connection between the new battery and the fob, leading to optimal performance. Keeping the contacts clean can extend the battery’s life and improve the fob’s functionality.
In summary, replacing your Subaru key fob battery requires a small flathead screwdriver or coin, a new battery (either CR2032 or CR2025), and optionally, a clean cloth for maintenance. These simple tools enable quick and efficient battery replacement, ensuring continued access to your vehicle.
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